Home / 122,634.68-169,236.98-74,237.72

Finding the Fourth Proportional to 122,634.68, 169,236.98 and 74,237.72

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Solution

The fourth proportional to 122,634.68, 169,236.98 and 74,237.72 is: 102,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,634.68 : 169,236.98 = 74,237.72 : x
  2. Step 2: Convert to fraction form
    122,634.68/169,236.98 = 74,237.72/x
  3. Step 3: Cross multiply
    122,634.68x = 169,236.98 × 74,237.72
  4. Step 4: Simplify right side
    122,634.68x = 12,563,767,534.89
  5. Step 5: Solve for x
    x = 12,563,767,534.89/122,634.68
  6. Step 6: Final answer
    x = 102,448.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.